Hope someone can shed some light on this.......
On my '98 Prostar190, 5.7litre the muffler on the port side has a 45° angle going to the riser hose and it appears the the starboard is at 60° going to the riser hose. Both are measured from horizontal. Does this make sense? I would think that they ought to both be alike; thinking 45°. The starboard side muffler had a leak at the exit end due to a deformed end, so I pulled both and spliced straight through pipes. Sounds great. I'm curious about the angles though.

Table Rocker

12-19-2013, 01:23 PM

They are the same on my '96. Could one of them have been replaced?

Snipe

12-19-2013, 01:33 PM

They are the same on my '96. Could one of them have been replaced?
Yup.......the port side is new. That's the 45° one. It fits really nice though.

Table Rocker

12-19-2013, 01:57 PM

Yup.......the port side is new. That's the 45° one. It fits really nice though.Same length muffler?
Mine looks like your steeper one. Here it is after I repaired the leak.

Snipe

12-19-2013, 02:09 PM

Yes, they are both the same length. Mine leaked on the other end. The round exhaust (3.5") area was deformed. So I just replaced both sides with regular PVC plumbing pipe. It doesn't get hot anyway and is working great. I love the sound I got by doing that.
Yours looks to be quite a bit steeper, unless it's just the way the picture was taken. My friend has a 205 and I believe his also is the 60° angle. everything is working fine, I was just curios as to which is the correct angle.

Table Rocker

12-19-2013, 03:01 PM

I would guess mine are 60 degrees from the horizontal. - '96 205

Snipe

12-19-2013, 03:06 PM

Been trying to find sites that sell them such as Discount Inboard Marine, but they just show 45° mufflers. FWIW I won't be replacing, just would like to know. Think I'll contact MasterCraft some time and ask what they think. Thanks for your interest, I really appreciate it.